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CSS Variables Framework – README

When using the sass-variables post-processing tool, it is good to have in mind the following DO's and DON'Ts:

DO NOT specify property values containing CSS4 variables in multiple lines:

.box-shadow: 0 0 0 $x-box-shadow-color inset,
             0 0 10px $x-box-shadow-color inset;

DO specify property values in a single line:

.box-shadow: 0 0 0 $x-box-shadow-color inset, 0 0 10px $x-box-shadow-color inset;

Having the property values in a single line, makes it easier for the variable replacements and the fallback generation. At this moment, the sass-variables parser only supports single line property values.

DO NOT add CSS variable overrides on blocks:

body {
  --font-size-base: 45px;
}

DO add property overrides instead:

body {
  font-size: 45px;
 }

If CSS variable overrides are added, it will not add a fallback and the results may vary from the development (make dev or make) versions and the final builds (make theme or make css-vars).